Telephone system.



A. NfiMETH. TELElHONE SYSTEM. APPLICATION FILED AUG. 20, 1916.

' IN VE N TOR AT-TORNEY Patented Feb. 14, 1911.

T all-whom it may concern:

UNITED snares PATENT OFFICE.

ARPAD NEMETI-l', OF New iORK, N... Y., AssIeNon T0 UNITED s'rn'rns TELEPHONE HERALD COMPANY, or WILMINGTON, nELAwAgn, A CORPORATION or DELAWARE.

, TELEPHONE sYsTnM.

Be it known that 1, Annie Name-r11, a sub-- ject of the King of Hungary, and now resid ing'at New York, in the county of New. York and Stateof New York, have invented certain new and useful Improvements in a' Telephone System, of whiclfthe following is a specification.

My invention has relation to a telephone system in which reproductions of news or otherJhappenings by a series of connected microphones manually controlled at a can tralizing station, transposed over a linebattery' circuit are presented in sequence to dis 'fullyunderstood' from the following descrip, tion taken ,in connection with the acccnr tant subscribers or sub-stations with augmented clearness in 'volume and character,

thereby rendering such a system owing to the automatic and manually controlled fea- 0. tures thereof, particularly adapted-for sup- 2 p plying innumerable subscribers or sub stations through the centralizing station, in Se quence, with the undulating sound repro-' dIlCtlOIIS of general news, musical composl tions, and operas, sermons, correct or standard time and other happenings at stated intervals of day and night and the same controlled at and through the centralizing station.

The nature, general scoop and characteristic features ofmy invention will ,be more panying drawing illustrating diagrammatically, means susceptible of beingemployed for carryingoutniy said invention.

In thedrawing, A represents a series of connected microphones, any number, located at Various different po nts, but all in electrical connection through a centralizii-ig station B; with innumerable connected distant subscribers or sub-stations, and through which station the reproductions of diiliercnt happenings are transmitted over a line hattery circuit modified in volume-and characteras to clearness to the ii'anuuuu'able dis-- tant subscribers or sub-stati n1s (1'. connected micropl'ioncs A, are o -a line i, connected with switch-points 3 aiul 3. of blade-switches 3 andl-B", and switch-points l-and 45. by a line 5,-cm1ncctcd with one pole of a storage batteryl), of low voltage. From the switch 3. a line 3". iratls to ihe primary coils of a transformer i The other pole of the battery I), by a line (1, connected with a switch-point T, offthc Specification of Letters Patent.

All the Patented Feb. 14, 1911.

Application filed August 20, 1910; Serial No. 578,209. I

blade-switch 3, and the other point 7 there of, with the said line 3", The lines 10 and .11, from the secondary coils of the trans former E, are connected with the'primary coils of a transformer F of higher current potential and the secondary "coils of said transformer F, are included in a receivingcircuit 12-, in which thesebondary coils of a series of transformers H, are included to lower the current potential of the sound re-v pmeluctionesa :Eraehof the secondary coils of the several transformers H, at the sub.-

scribers setsor sub-stations C, is included in a circuit 13, in which are arranged head-re-' ceivers 0, and 0 shown, are connected with each other by a The microphones A, as

line-wire 'a, andthat wire-at a junction point isconnected with a line 9, leading to one end of the primary coils ofthe said transfornier E.

By shifting the switches 3 and 3, from closed to open positions, lines 6, d and-9, with'the particular microphones electrically connected, will be 'cut out, and hence the transmission of reproductions of-the news or other happenings over the said lines thereby prevented. By shifting the switch 3, from a closed to an open position, all the connected microphones will be cut out from the battery line circuit with the centralizing station B, to all of the distant substations C, in the instance of storms or other causes.

By the foregoing arrangement, news and other happenings are'transmitted over'the line battery circuit through the centralizing station E, and the reproductions dissen th nated modified uniformly in yoluine and character as to clearness or sharpness to the distant subscribers sets or substations a low voltage battery at the centralizing station, and manual control there-at of news. or other hap 'ienings to be transmitted in sequence at stated intervals to the distant sub scrihers setsor sub-stations is ;u*ovided; and

further a series of transformers for progressively increasing current potential at the said station, and lowering of current poten-v tial at each suhscribefis set or sub-station is provided with the result that the said reproductions are decidedly uniform in volume a mi character thereat.

Having; thus described the nature and objects of my lllVGIll'l()l1,'Wl13t I claim as new and desire to secure by Lette s Patent is:----

In a telephone system, the combination. of

telephone transmitters, each located at a separate point, line eirouitgfor sairl trans mitters leading therefrom} :a pentralizing station, acommon cur-rent gupply at said central statio fi for saicl'eififigits, means at said central station for controlling the operative circuit oi anyone c t-said transmitters,

trolling all the Circuit's of said transmitters, a plurality of transformers associated with said transmitter circuits for progressively increasi the current potential, the primary of one '0' said transformers-being common to all the transmitter circuits, a reeeiving-circuit associated with one of said trans-1 formers, 'a plurality of sub-stations associ ated {with said receiver-circuit and means as- 'lioeiatecl with each sub-station for decreasing the current potential uniformly with res eat to each sub-station, whereby the repro uctions at the substations-are rendered form in volume and character.

uni-- In w1tness whereof, I have hereunto set yjsignature in the presence bf two sub sc'ribmg witnesses.

Witnesses: v

' CoRNELIUsC. BALASSA.

H. W. ALLERS; Jr.

ARPAD NEMETH. 

